Exposure to PM2.5 and E cigarette can potentially put you at greater risk of lung cancer . Both exposure to PM2.5 air pollution and e cigarette use are linked to an increased risk of Health effects and known pathology associated with the use of E cigarettes ScienceDirect Vaping and Lung Cancer Screening: Reduced Rates Among Vapers Revealed AJMC E Cigarettes and Associated Health Risks: An Update on Cancer Potential Science & Tech Spotlight: E cigarettes U.S. GAO